_16. Which expression is equivalent to

Mathematics

1 answer:

Phantasy [73]3 years ago

5 0

Answer:

-2x-8

Step-by-step explanation:

1) Distribute:

-6/3x+-15/3-3

2) Simplify:

-2x-5-3

3) combine like terms:

-2x-8

hope this helps

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A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have

klemol [59]

Answer:

Step-by-step explanation:

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nikitadnepr [17]

Uhhh… this is a bad question. Because technically, none of those is the true correct answer. However, the only answer that it COULD be is B. If you were to plug in 1 into B, you’d get 0 in the denominator which creates an asymptote in the graph. None of the other three have this property

(Just a side rant, the reason none of them are technically correct is because x cannot equal -1 either… just some bonus points you could redeem with your teacher if you feel like it)

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Arisa [49]

<em>Standard equation of hyperbola is </em> $\frac{x^{2} }{ a^{2} } - \frac{ y^{2} }{ b^{2} } = 1$ .

<em>Comparing given info with standard equation, we get
</em>a(vertices)= +3 and -3
foci = $\sqrt{ a^{2} + b^{2} } = \sqrt{9+16} = \sqrt{25} =5$ .